Freezing
boiling
Vitamin D
magnesium, vitamin A, and Vitamin D
vitamin a Any fat-soluble vitamin.
It's likely that grains do have vitamin B. Some grains have 26% of vitamin B, some grains have 15% of vitamin B etc.
People with a diet of regular and adequate intake of foods rich in vitamin A; or taking vitamin A supplements.
d
Simple, Eat Meat. This is the reasons why vegetarians are much more likely to get vitamin B12 deficiency.
Most likely at your local vitamin shop.
Cow hooves, most likely.
The likely word is "vitamin" (necessary metabolic compound).
They genarally have vitamin c in them. Vitamin C helps fight a cold. But they also have other vitamins and minerals in them.